Fluid bed dryer , Fluid Bed Dryer for Powder and Granules
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This process is used in Fluid beds to form granules from a powder. The fluidized powder is wetted with binders using top spray guns. Binders are based on solvent or water and fluidized powder is wetted until liquid bridges are formed between particles. Segregation of powder doesn’t take place as different powders are glued together on a micro scale. Since there is no impinging force in the fluid bed equipments the granules are weak and having good solubility. Effervescent products are made much better using this process. Once the granules are made they are dried in the equipment using hot air. Using this technology the granules that are formed are dust free granules with free flowing properties. Granules also have good dispersibility with excellent solubility due to porous structure. It also have low bulk density with wide grain size distribution.